That reddit link reaches out to a page [0] that puts the license as CC BY-NC-SA 3.0, meaning non-commercial. Looking at the updated strandberg site[1] and some Ali clones, they look identical[2]. Maybe there are tweaks to the design, but it sure looks like the IP has been lifted entirely.

[0] https://guitarworks.thestrandbergs.com/

[1] https://strandbergguitars.com/

[2] https://www.aliexpress.com/w/wholesale-headless-guitar.html